A 10pack of Spike Nuts. These beauty Spike Nuts are 30mm tall and 15mm threaded depth .. and they are made from solid billet aluminum.. machined to exacting specs and then anodized to give the best, most durable colors possible. They are the perfect way to add a pop of color accent / detail to any custom build, engine bay detail, or special project. Please note, these M6 Spike Nuts only fit the standard 6mm x 1.0 threaded studs .. they are made of 6061-T6 aluminum .. so we do not recommend them for higher torque requirement applications.